CVE-2024-1888

Existing server guests invited to the team by members without "invite_guest" permission

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Mattermost fails to check the "invite_guest" permission when inviting guests of other teams to a team, allowing a member with permissions to add other members but not to add guests to add a guest to a team as long as the guest was already a guest in another team of the server

Mattermost no verifica el permiso "invite_guest" cuando invita a invitados de otros equipos a un equipo, lo que permite que un miembro con permisos agregue a otros miembros pero no agregue invitados para agregar un invitado a un equipo siempre que el invitado ya sea un invitado en otro equipo del servidor

*Credits: Eva Sarafianou

CVSS Scores

Mattermost, Inc.v3.1 4.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-26 CVE Reserved
2024-02-29 CVE Published
2024-03-01 EPSS Updated
2024-08-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (1)

URL	Tag	Source
https://mattermost.com/security-updates

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				<= 9.4.1 Search vendor "Mattermost" for product "Mattermost" and version " <= 9.4.1"		en		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				<= 9.3.0 Search vendor "Mattermost" for product "Mattermost" and version " <= 9.3.0"		en		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				<= 9.2.4 Search vendor "Mattermost" for product "Mattermost" and version " <= 9.2.4"		en		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				<= 8.1.8 Search vendor "Mattermost" for product "Mattermost" and version " <= 8.1.8"		en		Affected